Attic Rafter Insulation Board

Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.

Attic rafter insulation board. Hire a pro to install spray foam insulation. Attic rafter insulation is generally the most cost effective of any energy efficiency upgrade made to a house considering the potential cost savings that can be achieved on the monthly heating bills. This foam board insulation is available with straight or tongue and groove edges to help limit air movement. This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses.

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. The superattic system creates a continuous air and insulation barrier directly beneath the attic roof with no thermal bridging to compromise energy performance. R value for fiberglass or wool batts per inch is between r3 and r3 5. The superattic system utilizes proprietary silverglo rigid foam insulation panels to fully seal and insulate the attic directly beneath the roof rafters and directly inside the gable ends.

If you re considering turning your attic into conditioned storage or living space it s worth changing tactics to insulate between the rafters and wall joists instead of the floor. It is denser than eps and provides more r value with a rating of 5 per inch of thickness.